import java.io.*;

public class Test3 {
    public static void main(String[] args) throws IOException {
        BufferedReader br =new BufferedReader(new FileReader("D:\\count.txt"));
        int count =Integer.parseInt(br.readLine());
        br.close();
        count++;
        if (count<=3){
            System.out.println("欢迎使用本软件"+count);
        }else {
            System.out.println("不能使用");
        }
        BufferedWriter bw=new BufferedWriter(new FileWriter("D:\\count.txt"));
        bw.write(count+"");
        bw.close();
    }
}
